Group Sources for the new numbering system.

Builders,

Below I have stripped down the new numbering system to just the group headings. Now it is forming something of a check list for a builder. Without the details drawing your attention, you can get a bigger picture of the build as a path.

In this segment I want to show builders where the primary sources are for people finishing most engines today. Again, this isn’t a detailed shopping list right now, It is just a big picture overview of the best route to success now days.

If the task of building still looks long even with all the details removed, first note this: Groups 3400 through 4300 are in this color brown. They are best understood as the airframe installation part of the engine build. If your goal is to get an engine running on the stand at a college, you will not need any of the parts from these groups yet. So lets stay focused on the groups through 3300.

Next, understand that you will not need to use all 34 of the other groups to have a running engine, There are 3 different 5th bearing choices listed, Dan’s is 3000 in blue, Roy’s is 3100 in green, and mine is 3200 in black. There are other choices on oil systems, charging systems, and other parts that mean a running engine is built out of roughly 28 groups.

Every group that most builders today get from Dan is coded in blue. Looking at Group 1000, it is blue because Dan is now processing the majority of cranks going into engines, and supplying a flow of new billet ones. He isn’t the only place, Moldex is still doing cranks, but I want this list to focus on what is popular now, not every possible path. Shortly, Rachel is going to have the same numbering system on their website as we use here to make processing easier to follow.

Parts from Roy are coded green and those from Mark at Falcon are coded red here. I left everything else in black. A little later I will introduce our own detailed parts list with new numbers, but for now, the majority of the remaining items in black are from us or through basic sources like Clarks.

While getting this overview, feel free to go back and look at the 20 parts I wrote in the last 60 days under the heading “Getting Started in 2013.” They provide an in-depth look at builder choices for the Groups 1000-1600. This is what the new numbering system is about; having the ability to have a good overview of the process by looking at the checklist below, then getting a more detailed look at each step and the required parts by studying the full list presented in the two previous parts, and finally, having each component numbered so that you can read and understand anything I share about my experience on that exact part, without loosing your place on where that specific part will be serving in your own engine build.

In the next segment, I am going to build up some typical engines and show exactly which groups they draw on, and in which order you work them to get to the finish line of a running engine this season.

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(1000) Crank group

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(1100) Cam group

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(1200) Case group

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(1300) Piston and rod group

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(1400) Cylinder group

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(1500) Head group

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(1600) Valve train group

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(1700) Head clamping hardware

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(1800) Steel engine cooling baffles

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(1900) Valve Cover Group

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(2000) Rear oil case group

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(2100) Oil pump and regulator group

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(2200) Oil Pan Group

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(2300) Front cover group

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(2400) Starter group

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(2500) Hub group

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(2600) Top oil group

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(2700) Oil cooler group

NOTE: If you opt for group 2700, then delete group 2800.

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(2800) Heavy duty oil cooler group

NOTE: If you opt for group 2800, then delete group 2700.

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(2900) Standard charging system group

NOTE: If you opt for group 2900, then delete group 2950.

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(2950) Rear charging system group

NOTE: If you opt for group 2950, then delete group 2900.

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(3000) Weseman 5th bearing group

NOTE: If you opt for group 3000, thendelete the 2300 group. Contact FlyWithSPA.com for more information.

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(3050) 5th bearing oil line group

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(3100) RoysGarage.com 5th bearing group

NOTE: Typically, builders selecting this option will be fulfilling the following groups: 1000, 1100, 1200 and deleting 2300. Contact Roysgarage.com for detailed pricing.

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(3200) William Wynne 5th bearing group

NOTE: This bearing takes the place of groups 1000, 1100, 1200 and deletes 2300. Bearing system is not in production at this time.

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(3300) Ignition group

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(3400) Airframe ignition group

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(3500) Airframe charging group

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(3600) Intakes and carburetors

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(3700) EFI Electronic fuel injection

Note: included only for later discussion.

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(3800) Mechanical fuel injection

Note: included only for later discussion.

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(3900) Stainless exhaust systems

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(4000) Propellers and spinners

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(4100) Baffling and cowls

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(4200) Motor mounts

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(4300) Airframe fuel systems

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About William WynneI have been continuously building, testing and flying Corvair engines since 1989. Information, parts and components that we developed and tested are now flying on several hundred Corvair powered aircraft. I earned a Bachelor of Science in Professional Aeronautics and an A&P license from Embry-Riddle Aeronautical University, and have a proven 20 year track record of effectively teaching homebuilders how to create and fly their own Corvair powered planes. Much of this is chronicled at www.FlyCorvair.com and in more than 50 magazine articles.